Shingle



March 1933. N. P. HARSHBERGER 1,901,161

SHINGLE Filed June 5, 1931 BY ZJ ATTORNEY Patented Mar. 14, 1 933 UNITED STATES PATENT OFFICE noimhn' PIHABSHjiEBGER, or SGAJBSDALE, NEW YORK, assreuon. To run Bamm'r'r comm, or NEW vonx. N. Y., A conrona'rron or NEW men! smnem Application flied June 5, 1981. Serial No. 542,317.

which serve as guides in the application of the shingles in abutting relationship on a roof and also form interlocking means to hold down the forward edges of the overlying shingles and thus improve the weathering properties of the roof or other surfaces to which the shingle elements may be applied.

Other objects and advantages of this in-' vention will appear from the following detailed description.

, 2.5: Individual shingles, the lower edges of which are provide with projecting portions and adapted to enga e when laid with slits or slots of subjacent s ingles are well known. This invention is in the nature of an improve- 3 'ment on such shingles in that it provides a more durable element and one which can more readily and quickly be applied in inter-- locking relation. The shingle of this invention is particularly adapted for reroofin purposes-but it will be understood that it ma be used in the production of new roofs.

his invention comprehends an interlocking shingle, preferably of rectangular shape, aving a stepped portion in one side corner of the shingle, a projecting portion in the opposite side-corner and an interlocking projectionon the lower corner. The stepped portion of one shingle is arranged toabut against the projecting portion or the non-homologous portion of another shingle in the same course and form a slot which is adapted to engage and lock with the interlocking lug of a shingle of an overlying course. In addition to providing a locking means for the interlocking lug, the stepped and projecting portions serve as guides in the laying of the shingles and permit ready and quick application of the elements in even courses so as to obtain the desired eometrical figure.

The structure of the shingle resulting in the formation of a slot between adjacent shingles when laid eliminates thenecessity for a slit in the body portion of the shingle to lock down the side edges ofthe interlocking projection. Such a slit weakens the body portion of the shingle by reason of the break in surfacing and the division of the fibrous base. Therefore its elimination improves the strength, durability and. weathering properties of the shingle to a considerable degree.

In the accompanying drawing forming a part of this specification, and showing for the purposes of exemplification, a preferred form of this invention, but without limiting the claimed invention to such an illustrative instance;

Fig. 1 shows a plan view of a shin le illustrating the preferred embodiment 0 this invention 5 1 1 Fig. 2 illustrates a fragmentary plan of a number of shingles arran ed in courses upon a rof or other surface; and

Fig. 3 is a plan view of a strip of shingle material indicating the manner in which the shingles may be cutfrom the strip. 1

In the preferred embodiment illustrated in the drawing, the invention is shown ing corporated in a shingle of the parallelogram type which is adapted to be laid in courses with like shingles to give a regular eomet-, rioal appearance, and the present escription will be confined to the present illus-' trated embodiment of this invention in such shingles. It will be noted, however, that the novel features and improvements are susceptible of other applications such as to strip shingles and shingles of different shapes.

' Hence, the scope of this invention is not confined to the embodiment herein described. '96

Referring to Fig. 1 of the drawing, 11 indicates a shingle of substantially rectangular v shape constructed in accordance with the teachings of the present invention. In this preferred embodiment the body portion of the shingle is defined by sides 13, 14, 19 and 22, said sides being disposed at right angles to each other.

The lower corner formed between the adjacent sides 13 and 14 is provided with a projecting lug 12, said lug having a bottom edge 23 which is cut on a line substantially parallel to the diagonal connecting the two adjacent opposite side corners of the shingle.

The sides of the lug extend vertically for a short distance and are then connected to the sides 13 and 14 by diagonal lines perpendicular to the said sides 13 and 14. By reason of this tapering of the sides of the lug, the locking of'the lug with the slot or slit members is facilitated.

The corner of the shingle defined by the adjacent sides 13 and 22 is cut off as at 18 to form a truncated portion having a vertical side. The step 17 which cooperates to form a locking slot in a manner to be presently described, is formed in the side 18 by horizontal cut 24 and a vertical cut 25 which is extended to the side 13.

The sides 14 and 19 define the opposite corner of the shingle, the side 19 being left intact in the cutting process. The side 14 is interrupted not only by the lug 12, but also by the slit 16 cut vertically in the body portion of the shingle. The vertical slit 16 in combination with the extended portion 25 define a projection 15 extending downwardly from the body portion of the shingle and terminating on a horizontal edge 26, which runs at an angle to the side 14.

The fourth corner, i. e., the corner defined by the sides 19 and 22 ischaracterized by a projection 27 formed between side 19 and the vertical cut 28. A horizontal cut 21 in combination with cut 28 provides a stepped portion which is formed incidental to the cutting operation and may be used as a guide in arranging the shingles in courses.

The shingle illustrated in Fig. 1 may be cut from a single sheet of material without substantial waste, as shown in Fig. 3. In the cutting operation two lug portions 12 of diagonally positioned shingles 30, 31 are out in abutting relation with each other, the stepped portions 17 and the portions 18 of the pair of diagonally positioned shingles 32 and 33 being formed in the cutting of the two lugs 12 on shingles 30 and 31. The projecting portion 15 of shingle 3-1 is defined by cuts 21 and 28 forming the recess in the upper corner of the shingle 33. By the described method of cutting, the entire sheet of material is utilized, with the exception of the relatively small fragments 34in the center of the sheet located between the sides 17 and 18 and the projecting lugs 12.

The shingles are preferably made from usual roofing felt saturated and coated with bituminous material and surfaced with granular material in accordance with well established roofing practice. The granular maprojecting lug 12 of the shingle of the next .3

highest course is locked by the slot 29, formed as above described and by slit 16 which is cut on the inner side of the projecting portion 15, the ends of lug 12 passing through slots 29 and 16 in the pair of iinderlying shingles and locked down thereby. By means of this interlocking, the lower edge of the locked shingle is securely fastened and is not susceptible of being warped or turned upwardly by the wind.

It will be noted that by virtue of the interlocking lug 12, the point of abutment of the shingles is completely covered, thus avoiding exposure of the edges to the. elements. llt will also be noted that the novel construction herein described obviates the use of a locking slit, thus eliminating a cutting step in the manufacture of the shingle, and furnishing a shingle of maximum strength and resistance.

By the use of the projecting portion 15 and the stepped portion 17 to form an interlocking slot, an extra layer of material, i. e., the projecting portion 15 lies below the locking lug 12 when the shingles are laid. This produces a regular series of raised or double portions of roofing material at the forward edge of the lugs 12, which give rise to a deep shadow eflect, thereby increasing the attractiveness and novel appearance of the roof.

The invention, as herein described, is embodied in the particular form of construction, but it may be variously embodied within the scope of the following claims.

I claim:

1. 'An interlocking shingle element having an interlocking lug extending from the converging end of two adjacent edges and having a projection on one side edge and a recess beneath the projection, said projection arranged to abut against a second projection on a non-homologous side edge of a like shingle element to form a slot, the opposite sides of which are defined by an outer edge of the second projection and an edge of said recess, said slot arranged to receive and lock with the interlocking lug of another shingle.

2. A roof composed of a plurality of like shingles arranged in courses to form a desired figure, the non-homologous edges of said shingles being laid in substantially abutting relation, each shingle having a projecting portion extending from the intersection of two adjacent edges and a stepped portion extending from the intersection of two opposite adjacent edges, said projecting portion and said stepped portion cooperating to form a slot the opposite sides of which are defined by a side edge of the projecting portion and 1 an inner edge of the stepped portion, and a projecting lug on the lower edge of each shingle arranged to lock in said slot.

3. A roof composed of a plurality of like shingles arranged in courses to form a desired figure, the non-homologous edges of said shingles being laid in substantially abut-H ting relation, each shingle having a projecting portion extending from the intersection of two adjacent edges and a: stepped portion extending from the intersection of two op-m posite adjacent edges, said projecting portion and said stepped portion cooperating to form a slot, a slit in the main body portion of the shingle adjacent said projecting portion and a projecting lug on the lower corner of each shingle adapted to lock with said slit and said slot to secure the lower end of the shingle.

4. A roof composed of a plurality of like shingles arranged in overlapping courses to form a desired figure, the non-homolog0us edges of said shingles being laid in substantially abutting relation, each shingle having a projecting portion extending from the intersection of two adjacent edges and a stepped portion extending from the intersection of two opposite adjacent edges, said projecting portion and said stepped portion cooperating to form a slot, said slot lying at right angles to the line of the horizontal course of shingles, a slit in the main body portion of the shingle adjacent said projecting portion, said slit being parallel to said slot, and a projecting lug on the lower corner of each shingle, said lug of the shingles of the upper course being arranged to lock with said slit and slot of a pair of underlying shingles to secure the lower ends of said shingles of said upper course. In witness whereof, I hereunto aflix my signature.

NORMAN P. HARSHBERGER. 

